【作者】 何丽芳；

【导师】 冯秀兰；

【作者基本信息】 北京林业大学 ， 森林经理学， 2005， 硕士

【摘要】 大树移植具有快速成型成景的优势,随着城市建设和园林绿化水平的不断提高,它在城市绿化中得到了越来越多的应用。但是在目前多数情况下,人们在进行大树移植前缺少科学分析和审核,移植策略的选择与运用是孤立的。很多城市盲目地实行“大树进城”,导致大批大树死亡,造成了人力、物力和财力的浪费,同时也破坏了大树原生地周边的生态环境。 目前国内部分科研单位进行了大树移植以及快速成型、成景技术的研究,并对大树移植的经验也进行了总结,积累了大量相关数据,为大树移植工作提供了有用的参考。但是在以往的研究工作中,仍然使用人工的方法对大树移植数据和资料进行操作,很少涉及到将计算机技术与大树移植理论和实践相结合的研究。 随着信息化的不断深入,计算机技术在各个领域都得到了广泛的应用,特别是计算机辅助决策技术在许多方面的应用都趋于完善,在许多行业起到了重要的作用。因此,本研究基于大树移植的实践理论,采用计算机技术进行移植辅助决策,将移植技术规程、费用支出流程和移植相关数据有机结合,使用Delphi语言和SQL Server 2000数据库开发大树移植辅助决策系统。 本系统的移植数据管理模块将影响到大树移植的关键数据如大树移植技术规程、环境因子、大树的生长情况以及其他移植数据,并通过该模块对这些数据进行维护和管理。 本系统的移植数据查询模块供用户对数据库中的数据进行多种方式的查询。 本文通过将苗木生长规律和移植过程与费用支出情况相结合,分析设计出大树在移植不同阶段的费用支出流程,根据该流程开发了费用计算模块,实现了大树移植的费用计算功能。该模块可供用户按时间或树种进行分类汇总计算和费用字典的查询等。 本文在对大树移植技术规程进行分析研究的基础上,建立了大树移植规程知识库。本系统的方案生成模块可以为用户生成多种大树移植方案。 大树移植辅助决策系统的研建能为大树移植工作科学、合理、有序的进行提供帮助。更多还原

【Abstract】 Along with fast development in city construction and greening, more and more big trees are transplanted because they have the advantage to generate scenery quickly. At present, the procedures and strategy of big-tree transplanting are isolated. That results in not only waste of manpower and resources, but ecological environment destruction around big trees as well.Based on big-tree transplanting research that many institutes are carrying on, the experience and technology of transplanting get a big progress, there are many useful data available for the transplanting activity. In the past experiences of transplanting, researchers rarely connected computer technology to big-tree transplanting, data and information of big-tree transplanting are handled by handwork in most cases.Information technology is extensively used in a variety of social areas, especially aided decision system plays a big role in many projects. So it is creative to apply the system to big-tree transplanting. On the foundation of big-tree transplanting technology, this thesis uses SQL Server 2000 and Delphi to develop Big-tree transplanting aided decision system by combining transplanting technology procedures with fee expenditure process and related data of transplanting.This system constructs a data management form that includes data of transplanting technology procedure, environmental factors and growing situations of big trees. Data are maintained and managed by this form.This system offers a transplanting information form to users who can inform data of this database by many ways.By combining trees’ growing characters with transplanting procedures and expenditure situations, this system designs the expenditure process of different transplanting steps. Expenditure calculating form is developed through this form, so the expenditure calculating function is realized. Users can calculate expenditure by time or by different trees or inform expenditure dictionary through this form.By analyzing big-tree transplanting technical procedures, this system constructs a database of transplanting procedures. It also designs a scheme-generating form which can generate many schemes for the users.The transplanting of big trees will be more scientific and rational by combining big-tree transplanting with aided decision system.更多还原